<template>
    <div class="app-container">
        <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch"
                 label-width="90px">
            <el-form-item label="栏目名称:" prop="columnName">
                <el-input
                    v-model="queryParams.columnName"
                    placeholder="请输入栏目名称"
                    clearable
                    @keyup.enter.native="handleQuery"
                />
            </el-form-item>
            <el-form-item>
                <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
                <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
            </el-form-item>
        </el-form>

        <el-row :gutter="10" class="mb8">
            <el-col :span="1.5">
                <el-button
                    type="primary"
                    plain
                    icon="el-icon-plus"
                    size="mini"
                    @click="handleAdd"
                    v-hasPermi="['docs:column:add']"
                >新增
                </el-button>
            </el-col>
            <el-col :span="1.5">
                <el-button
                    type="info"
                    plain
                    icon="el-icon-sort"
                    size="mini"
                    @click="toggleExpandAll"
                >展开/折叠
                </el-button>
            </el-col>
            <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
        </el-row>

        <el-table
            border
            v-if="refreshTable"
            v-loading="loading"
            :data="columnList"
            row-key="columnId"
            :default-expand-all="isExpandAll"
            :tree-props="{children: 'children', hasChildren: 'hasChildren'}"
        >
            <el-table-column label="栏目" align="left" prop="columnName"/>
            <el-table-column label="类型" align="center" prop="columnType">
                <template slot-scope="scope">
                    <el-tag  v-if="scope.row.columnType==0">信息发布</el-tag>
                    <el-tag type="warning" v-if="scope.row.columnType==1">活动发布</el-tag>
                </template>
            </el-table-column>
            <!--<el-table-column label="顺序" align="center" prop="columnSort"/>-->
            <el-table-column label="状态" align="center" prop="status">
                <template slot-scope="scope">
                    <el-switch :disabled="scope.row.parentId==0"
                        v-model="scope.row.status"
                        active-value="0"
                        inactive-value="1"
                        @change="handleStatusChange(scope.row)"
                    ></el-switch>
                </template>
            </el-table-column>
            <el-table-column label="备注" align="center" prop="remark"/>
            <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
                <template slot-scope="scope">
                    <el-button
                        size="mini"
                        type="text"
                        icon="el-icon-edit"
                        @click="handleUpdate(scope.row)"
                        v-hasPermi="['docs:column:edit']"
                    >修改
                    </el-button>
                </template>
            </el-table-column>
        </el-table>

        <!-- 添加或修改栏目对话框 -->
        <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
            <el-form ref="form" :model="form" :rules="rules" label-width="80px">
                <el-form-item label="父类" prop="parentId">
                    <treeselect v-model="form.parentId" :options="columnOptions" :normalizer="normalizer"
                                placeholder="请选择父类栏目"/>
                </el-form-item>
                <el-form-item label="名称" prop="columnName">
                    <el-input v-model="form.columnName" placeholder="请输入栏目名称"/>
                </el-form-item>
                <el-form-item label="类型" prop="columnType">
                    <el-radio-group v-model="form.columnType">
                        <el-radio :key="type.label" :label="type.label" v-for="type in columnType">{{ type.name }}
                        </el-radio>
                    </el-radio-group>
                </el-form-item>
                <!--<el-form-item label="顺序" prop="columnSort">
                    <el-input v-model="form.columnSort" placeholder="请输入顺序"/>
                </el-form-item>-->
                <el-form-item label="备注" prop="remark">
                    <el-input v-model="form.remark" type="textarea" placeholder="请输入内容"/>
                </el-form-item>
            </el-form>
            <div slot="footer" class="dialog-footer">
                <el-button type="primary" @click="submitForm">确 定</el-button>
                <el-button @click="cancel">取 消</el-button>
            </div>
        </el-dialog>
    </div>
</template>

<script>
import {
    listColumn,
    getColumn,
    delColumn,
    addColumn,
    updateColumn,
    changeColumnStatus
} from "@/api/docs/column";
import Treeselect from "@riophae/vue-treeselect";
import "@riophae/vue-treeselect/dist/vue-treeselect.css";

export default {
    name: "Column",
    components: {
        Treeselect
    },
    data() {
        return {
            // 遮罩层
            loading: true,
            // 显示搜索条件
            showSearch: true,
            // 栏目表格数据
            columnList: [],
            // 栏目树选项
            columnOptions: [],
            // 弹出层标题
            title: "",
            // 是否显示弹出层
            open: false,
            // 是否展开，默认全部展开
            isExpandAll: true,
            // 重新渲染表格状态
            refreshTable: true,
            // 查询参数
            queryParams: {
                parentId: null,
                columnName: null,
                columnType: null,
                columnSort: null,
                status: null,
            },
            columnType: [{'label': 0, name: '信息发布'}, {'label': 1, name: '活动发布'}],
            // 表单参数
            form: {},
            // 表单校验
            rules: {
                columnName: [
                    {required: true, message: "栏目名称不能为空", trigger: "blur"}
                ],
                columnType: [
                    {required: true, message: "栏目类型0:信息,1:评议不能为空", trigger: "change"}
                ],
                status: [
                    {required: true, message: "状态不能为空", trigger: "change"}
                ],
            }
        };
    },
    created() {
        this.getList();
    },
    methods: {
        /** 查询栏目列表 */
        getList() {
            this.loading = true;
            listColumn(this.queryParams).then(response => {
                this.columnList = this.handleTree(response.data, "columnId", "parentId");
                this.loading = false;
            });
        },
        /** 转换栏目数据结构 */
        normalizer(node) {
            if (node.children && !node.children.length) {
                delete node.children;
            }
            return {
                id: node.columnId,
                label: node.columnName,
                children: node.children
            };
        },
        /** 查询栏目下拉树结构 */
        getTreeselect() {
            listColumn().then(response => {
                this.columnOptions = [];
                const data = {columnId: 0, columnName: '顶级节点', children: []};
                data.children = this.handleTree(response.data, "columnId", "parentId");
                this.columnOptions.push(data);
            });
        },
        // 取消按钮
        cancel() {
            this.open = false;
            this.reset();
        },
        // 表单重置
        reset() {
            this.form = {
                columnId: null,
                parentId: null,
                columnName: null,
                columnType: null,
                columnSort: null,
                status: null,
                createBy: null,
                createTime: null,
                updateBy: null,
                updateTime: null,
                remark: null
            };
            this.resetForm("form");
        },
        /** 搜索按钮操作 */
        handleQuery() {
            this.getList();
        },
        /** 重置按钮操作 */
        resetQuery() {
            this.resetForm("queryForm");
            this.handleQuery();
        },
        /** 新增按钮操作 */
        handleAdd(row) {
            this.reset();
            this.form.columnType =0;
            this.getTreeselect();
            if (row != null && row.columnId) {
                this.form.parentId = row.columnId;
            } else {
                this.form.parentId = 0;
            }
            this.open = true;
            this.title = "添加栏目";
        },
        /** 展开/折叠操作 */
        toggleExpandAll() {
            this.refreshTable = false;
            this.isExpandAll = !this.isExpandAll;
            this.$nextTick(() => {
                this.refreshTable = true;
            });
        },
        /** 修改按钮操作 */
        handleUpdate(row) {
            this.reset();
            this.getTreeselect();
            if (row != null) {
                this.form.parentId = row.parentId;
            }
            getColumn(row.columnId).then(response => {
                this.form = response.data;
                this.open = true;
                this.title = "修改栏目";
            });
        },
        /** 提交按钮 */
        submitForm() {
            this.$refs["form"].validate(valid => {
                if (valid) {
                    if (this.form.columnId != null) {
                        updateColumn(this.form).then(response => {
                            this.$modal.msgSuccess("修改成功");
                            this.open = false;
                            this.getList();
                        });
                    } else {
                        addColumn(this.form).then(response => {
                            this.$modal.msgSuccess("新增成功");
                            this.open = false;
                            this.getList();
                        });
                    }
                }
            });
        },

        handleStatusChange(row) {
            let text = row.status === "0" ? "启用" : "禁用";
            this.$modal.confirm('确认要' + text + row.columnName + '这个栏目嘛？').then(function () {
                return changeColumnStatus(row.columnId, row.status);
            }).then(() => {
                this.$modal.msgSuccess(text + "成功");
            }).catch(function () {
                row.status = row.status === "0" ? "1" : "0";
            });
        },
    }
};
</script>
